Home / 144,160.81-198,938.40-79,635.43

Finding the Fourth Proportional to 144,160.81, 198,938.40 and 79,635.43

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Solution

The fourth proportional to 144,160.81, 198,938.40 and 79,635.43 is: 109,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,160.81 : 198,938.40 = 79,635.43 : x
  2. Step 2: Convert to fraction form
    144,160.81/198,938.40 = 79,635.43/x
  3. Step 3: Cross multiply
    144,160.81x = 198,938.40 × 79,635.43
  4. Step 4: Simplify right side
    144,160.81x = 15,842,545,089.96
  5. Step 5: Solve for x
    x = 15,842,545,089.96/144,160.81
  6. Step 6: Final answer
    x = 109,894.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.